Ball-and-socket joint.



R. R. HARE-ELL.

BALL AND SOCKET JOINT.

APPLIUATION FILED NOV. 13, 1911.

Patented Mar. 4, 1913.

IJIIIVII INVENTOR imp/0W7. Maw/:21, gf/ /i BY mph/ 5 ATTORNEYS UNITED STATES PATENT oFFIoE.

BIDDICK K013133513 HARRELL, OF SUFFOLK, VIRGINIA.

BALL-AND-SOCKET JOINT.

To all whom it may concern:

Be it known that I, RIDDICK Ronnu'r HannuLL, a citizen of the United States, and a resident of Suffolk, in the county of Nansemond and State of Virginia, have made certain new and useful Improvements in Balland-Socket Joints, of which the following is a specification.

This invention is an improvement in ball and socket joints, seeking to provide a novel and effective construction whereby a constant uniform pressure will be automatically securedupon the ball, and the inven tion consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed;

In the drawing-Figure 1 is a plan view,

Fig. 2 is a sectional elevation of a construction embodying my invention, Fig. 3 is a detail perspective view showing the two cam sections heldtogether by the connecting pin, Fig: 4 is a detail erspective view of one of the cam sections, rig. 5 is a sectional View drawn axially through the cam sections, and Fig. 6 is a sectional view on about line 66 of Fig. 5.

, By my invention, I seek to provide a joint that will be automatic in action, in

which the wear on both the ball and the socket will be taken up automatically, which will require no considerable adjustment, will I in connection with the ball and the seat or 1d end of a rod D, while the other end of for convenience of reference I term, a body A, which 1s provided with a seat or abutment B, against which the ball C is pre'ssed by the spring actuated cam mechanism presently described. The body A is socketed at one end at A to receive the thread- .Specification of Letters Patent.

Application filed November 13, 1911.

Patented Mar. 4-, 1913. Serial No. 660,018.

on which the barrel E is threaded. A-slot B leads from the concave seat B for the hall C, and communicates with an opening at B through which the ball may beintroduced and removed, the body A having a bore A leading to its headed end A A plunger-like device F operates in the bore A, and has its end F formed to fit the ball, while its other end is pressed upon by the stem G on the cam disk G, the said stem G projecting "from one side of the cam disk G, while the stud G projects from the opposite side of the disk, and is slotted at G to receive the inner end H of a coiled spring H whose outer end II engages with'the complementary cam disk I, as will be understood from Figs. 3 and 6 of the drawing. The disks Gr and I have cooperating cam face-s G and 1 and the spring II acts, when compressed, to turn the said disks G and I in reverse directions, and this, by the action of the cam faces G and 1 causes the stem G to project into the body portion A and to press the plunger F against the ball (1 to the extent to which the section G is moved by the action-of the cam faces.

For convenience in holding the disks from accidental movement when the spring H has been contracted, and until said disks may be inserted in position in a barrel E and the latter be properly secured upon the body A, I provide the disks G and I with openings G and I, which will be brought into register when the disksare tu'rned to contract the spring II, at which time a pin K may be inserted through the disk I and into the disk G to hold said arts from independent turning, the barrel having atits end plate J provided at J with an opening through which the pin K may protrude. When the barrel E has been properly adjusted upon the body A, it maybe clamped in position by a nut and bolt at L, connecting lugs J 2 on opposite sides of alongitudinal slot in the open end of the-barrel E. Then the pin K may be withdrawn through the hole J and the screw J be inserted to fill the said hole,

as shown in Fig. 1. As best shown in Figs.

the body has an enlarged threaded head A 7 disk.

pansion disks with cam faces on both, since thereby We secure a greater adjustment or The construction is simple and easily applied, and efliciently serves the purpose for which it is'designed.

I claim: y

1. The combination substantially as herein described of a body portion having a seat for. a ball and also having an axial bore extending from said seat, the body portion also having a side slot communicating with said bore, the said slot being formed with an enlarged portion through which a ball may be inserted, a ball fitted to said seat, the said. body portion having a threaded end, the barrel screwed on the body portion, means for locking the barrel upon the body portion, expansion disks inclosed within the barrel and having opposing cam surfaces, 2 spring operating said disks to turn the same relatively,a plunger in the body portion and bearing against the ball,:and a stem on one of the disks and bearing against the plunger, substantially as set forth.

2. In an apparatus substantially as described, a pairof concentric cooperating expansion disks provided with openings which may be adjusted into coincidence, a spring for turning said disks relatively, the coincident openings beingadapted to receive a pin for temporarily restrainingthe turning of the disks, substantially as set forth.

3. The combination of a body portion having a seat for a ball, a plunger to bear against the ball, a barrel fitting removably on the end of the body portion, a cam in the barrel and operating upon the plunger, a

s rin actuatino said cam and a in for P a n locking the said cam from independent movement, the barrel being provided With an opening for the introduction of the said pin, substantially as set forth.

RIDDICK ROBERT HARREIiL.

\Vitnesses:

R. H. RAwLEs, D. L. HARRELL. 

